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Finding the Fourth Proportional to 332,969.56, 499,371.28 and 130,606.78

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Solution

The fourth proportional to 332,969.56, 499,371.28 and 130,606.78 is: 195,877.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,969.56 : 499,371.28 = 130,606.78 : x
  2. Step 2: Convert to fraction form
    332,969.56/499,371.28 = 130,606.78/x
  3. Step 3: Cross multiply
    332,969.56x = 499,371.28 × 130,606.78
  4. Step 4: Simplify right side
    332,969.56x = 65,221,274,905.28
  5. Step 5: Solve for x
    x = 65,221,274,905.28/332,969.56
  6. Step 6: Final answer
    x = 195,877.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.